Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/44677
DC FieldValueLanguage
dc.contributor.authorLu, H.Y.en_US
dc.contributor.author彭宗仁zh_TW
dc.contributor.authorPeng, T.R.en_US
dc.contributor.authorLiu, T.K.en_US
dc.contributor.authorWang, C.H.en_US
dc.contributor.authorHuang, C.C.en_US
dc.date2006zh_TW
dc.date.accessioned2014-06-06T08:13:01Z-
dc.date.available2014-06-06T08:13:01Z-
dc.identifier.issn0943-0105zh_TW
dc.identifier.urihttp://hdl.handle.net/11455/44677-
dc.description.abstractThis study was based on the analysis of isotopic compositions of hydrogen and oxygen in samples from precipitation, groundwater and stream water. In addition, parts of groundwater samples were dated by carbon-14 and tritium. These data are integrated to provide other views of the hydrologic cycle in the Hsinchu-Miaoli groundwater district. The groundwater district is principally composed of Pleistocene and Holocene aquifers. The Pleistocene aquifers are highly deformed by folding and faults into small sub-districts with areas of only tens of square kilometers. These aquifers are exclusively recharged by local precipitation. The Holocene aquifers cover narrow creek valleys, only tens of meters in thickness. The local meteoric water line (LMWL), constructed from rainfall samples in the Hsinchu Science Park, is described by the equation delta D=8.02 delta O-18+10.16, which agrees with the global meteoric water line. In addition, the precipitation isotopic compositions can be categorized into two distinct end members: typhoon type and monsoon type. The groundwater isotopic compositions are perfectly located on an LMWL and can be considered a mixture of precipitations. Based on the mass balance of isotopic compositions of oxygen and hydrogen, infiltration is more active in the rainy season with depleted isotopic compositions. The amount of infiltration during May-September is roughly estimated to comprise at least 55% of the whole year's recharge. The isotopic compositions of stream water are expressed by a regression equation: delta D=7.61 delta O-18+9.62, which is similar to the LMWL. Although precipitation isotopic compositions are depleted during summer time, the isotopic compositions contrarily show an enriched trend in the upstream area. This is explained by the opposite altitude effect on isotopic compositions for typhoon-related precipitations.en_US
dc.language.isoen_USzh_TW
dc.relationEnvironmental Geologyen_US
dc.relation.ispartofseriesEnvironmental Geology, Volume 50, Issue 6, Page(s) 885-898.en_US
dc.relation.urihttp://dx.doi.org/10.1007/s00254-006-0260-yen_US
dc.subjectstable isotopesen_US
dc.subjectgroundwater rechargeen_US
dc.subjectPleistocene aquiferen_US
dc.subjectMid-northernen_US
dc.subjectTaiwanen_US
dc.subjectwateren_US
dc.titleStudy of stable isotopes for highly deformed aquifers in the Hsinchu-Miaoli area, Taiwanen_US
dc.typeJournal Articlezh_TW
dc.identifier.doi10.1007/s00254-006-0260-yzh_TW
item.grantfulltextnone-
item.openairetypeJournal Article-
item.cerifentitytypePublications-
item.languageiso639-1en_US-
item.fulltextno fulltext-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
Appears in Collections:土壤環境科學系
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